Phase space Langevin equation for spin relaxation in a dc magnetic field
Item Type:Journal Article
Citation:Yu. P. Kalmykov, W. T. Coffey and S. V. Titov, Phase space Langevin equation for spin relaxation in a dc magnetic field, Europhysics Letters, 88, 1, 2009, 17002
Phase space Langevin equation for spin relaxation in a dc magnetic field.pdf (Published (publisher's copy) - Peer Reviewed) 178.3Kb
A Langevin equation for the quantum Brownian motion of a spin of arbitrary size in a uniform external dc magnetic field is derived from the phase space master equation in the weak coupling and narrowing limits, for the quasiprobability distribution (Wigner) function of spin orientations in the configuration space of polar and azimuthal angles following methods long familiar in quantum optics. The closed system of differential-recurrence equations for the statistical moments describing magnetic relaxation of the spin is obtained as an example of applications of this equation.
Irish Research Council for Science Engineering and Technology
Author: COFFEY, WILLIAM THOMAS
Type of material:Journal Article
Series/Report no:Europhysics Letters;
Availability:Full text available
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